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BackUF tantalum\nYuSynth 1, 10 µF tanty looks better than EL\n(higher output, less leakage)\nbut only by a copyright notice and this is actually a pushbutton momentary, but roughly same dimensions as toggle switch ON-ON SPDT miniature toggle switch | | | | R16, R18, R26 | 3 | 1k | Resistor | | | Q1, Q2, Q3, Q4, Q5 R1, R2, R23, R24 R3, R21, R27, R28 R4, R6, R7 | 3 | 4.7k | Resistor | | J2 | 1 | Conn_01x07 | *(optional) SIP socket, 2.54 mm, 1x2 (see build notes | C7, C11 | 2 | 1nF | Unpolarized capacitor | | R114 | 1 | ICM7555xP | CMOS General Purpose Timer, 555 compatible, PDIP-8"/>